Home / 256,236,424.80-384,354,637.20-253,847,637.60

Finding the Fourth Proportional to 256,236,424.80, 384,354,637.20 and 253,847,637.60

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Solution

The fourth proportional to 256,236,424.80, 384,354,637.20 and 253,847,637.60 is: 380,771,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,236,424.80 : 384,354,637.20 = 253,847,637.60 : x
  2. Step 2: Convert to fraction form
    256,236,424.80/384,354,637.20 = 253,847,637.60/x
  3. Step 3: Cross multiply
    256,236,424.80x = 384,354,637.20 × 253,847,637.60
  4. Step 4: Simplify right side
    256,236,424.80x = 97,567,516,653,825,072
  5. Step 5: Solve for x
    x = 97,567,516,653,825,072/256,236,424.80
  6. Step 6: Final answer
    x = 380,771,456.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.